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Case Studies

This library contains research reports produced by the Building America program and other building science resources used to support this Solution Center. The materials cover both new construction and existing homes. Use the search box and/or the filters to explore hundreds of residential building resources. Access to some references not produced by Building America may require purchase from the publisher. Documents are listed alphabetically. While we continually update our database, links may have changed since posting. Please contact our webmaster if you find broken links.

Author(s): BSC
Organization(s): BSC
Publication Date: April, 2010
Case study describing a retrofit project in the cold and very-cold climate zones.
Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study about new home construction in the hot-dry and mixed-dry climate zones.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2010

Case study describing a building project in the cold and very-cold climate zones.

Author(s): PNNL
Organization(s): PNNL
Publication Date: January, 2011

Case study describing a building project in the cold and very-cold climate zones.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2010

Case study describing a building project in the cold and very-cold climate zones.

Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the cold and very-cold climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the cold and very-cold climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the marine climate.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the cold and very-cold climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the mixed-humid climate zone.
Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2009
Builder's Challenge case study.
Author(s): DOE
Organization(s): DOE
Publication Date: December, 2008

Case study describing building in cold and very cold climates.

Author(s): DOE
Organization(s): DOE
Publication Date: December, 2008

Case study describing a cold/very cold building project in Denver, CO

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010

Case study describing project conducted by Habitat for Humanity of Greater Lowell (HfHGL) and Building Science Corporation (BSC).

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2012

Case study of a Concord four-square home retrofitted by Building Science Corporation in Massachusetts.

Author(s): Poerschke, Beach, Beggs
Organization(s): IBACOS
Publication Date: June, 2017

IBACOS investigated the performance of a small-diameter high-velocity heat pump system compared to a conventional system in a new construction triplex townhouse. A ductless heat pump system also was installed for comparison, but the homebuyer backed out because of aesthetic concerns about that system. In total, two buildings, having identical...

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010

Case study of a Concord Cape Cod style home began in August 2008 by architects and engineers at Buliding Science Corporation, who developed the drawing set and specifications for the high performance custom home to be built in Concord, Massachusetts.

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010

Habitat for Humanity of Greater Lowell bought the land on which to build the Westford House from the town of Westford for $1. Habitat then partnered with Building Science Corporation, the community, local and national manufacturers, distributors and donors in an effort to create a comfortable, healthy, durable and energy efficient single...

Author(s): PNNL
Organization(s): PNNL
Publication Date: March, 2015

Building America Optimized Solution in the cold and very cold climates.

Author(s): PNNL, ORNL
Organization(s): PNNL, ORNL
Publication Date: December, 2010

Case study about a 20-unit community of energy-efficient duplexes in Massachusetts that incorporated solar water heating and photovoltaics.

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010
Case study about a new construction project designed to achieve an 87% reduction in source energy use when compared to the 2009 Building America Benchmark.
Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010
Case study about a retrofit project designed to show that advanced energy goals could be met today in existing housing.
Author(s): Gilbride
Organization(s): PNNL, Pacific Northwest National Laboratory
Publication Date: October, 2019

Case study showing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

Author(s): Gilbride
Organization(s): PNNL, Pacific Northwest National Laboratory
Publication Date: October, 2019

Case study showing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

Author(s): Gilbride
Organization(s): PNNL, Pacific Northwest National Laboratory
Publication Date: October, 2019

Case study showing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

Author(s): Gilbride
Organization(s): PNNL, Pacific Northwest National Laboratory
Publication Date: October, 2019

Case study showing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

Author(s): Gilbride
Organization(s): PNNL, Pacific Northwest National Laboratory
Publication Date: October, 2019

Case study showing project and performance data and energy-efficiency measures for a DOE 2019 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in west Connecticut that scored HERS 39 without solar PV. The 3,000 ft2 two-story home has R-33 double-walls, R-72 flat roof with closed-cell foam and blown cellulose, an ERV, and LED lighting.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Exeter, Rhode Island, that scored HERS 43 without PV. This 2,000 ft2 custom home has a spray- foamed attic and walls, plus rigid foam sheathing, ducted mini-split heat pumps, and an HRV.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Herriman, UT, that scored HERS 40 without PV, -1 with PV. This 4,111 ft2 production home has R-23 advanced framed walls, and a vented attic with R-60 blown fiberglass.

Author(s): Gilbride
Organization(s): PNNL
Publication Date: September, 2013

New Town Builders built this 3,560-ft2 production home in Denver, Colorado, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Libertyville IL that scored HERS 45 without PV. This 2,763 ft2 custom home has advanced framed walls with R-20 of open-cell spray foam, R-49 open-cell spray-foam sealed attic, an HRV, and a tankless water heater for hydro coil furnace with high-velocity, small-diameter ducts.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study about a DOE Zero Energy Ready Home in Devens MA that scored HERS 35 without PV or HERS -37 with PV. This 2,508 ft2 custom home has R-46 double-stud walls with open–cell spray foam, a vented attic with R-67 blown cellulose, plus R-10 rigid XPS under the slab, R-20 closed-cell spray foam on basement walls, triple-pane windows,...

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Devens MA that scored HERS 34 without PV or HERS -21 with PV. This 3,168 ft2 custom home has R-46 double-stud walls, a vented attic with R-67 blown cellulose, plus R-10 rigid XPS under the slab, R-20 closed-cell spray foam on basement walls, triple-pane windows, and mini-split ductless heat pumps....

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Downers Grove IL that scored HERS 35 without PV. This 3,600 ft2 custom home has advanced framed walls with R-23 dense-packed fiberglass plus R-13 rigid polyiso, a sealed attic with open-cell spray foam, a pier foundation, and 95% efficient gas furnace.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study describing a 4,763 ft2 certified Passive House that achieved HERS 27 without PV through the construction of R-54 walls that use ICF plus fiberglass cavity insulation, an R-100 vented attic, extensive air sealing and flashing, triple-pane windows, ductless heat pumps, and solar hot water.

Author(s): Gilbride
Organization(s): PNNL
Publication Date: November, 2014

Boulder ZED Design Build built this 2,504-ft2 custom home in Boulder, Colorado, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: September, 2014

BPC Green Builders built this 1,680-ft2 custom home in Danbury, Connecticut, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: September, 2014

Brookside Development built this 4,456-ft2 production home in Derby, Connecticut, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: September, 2014

Caldwell and Johnson built this 2,244-ft2 affordable home in Charlestown, Rhode Island, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: September, 2014

Cobblestone Homes built this 2,745-ft2 custom home in Midland, Michigan, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: November, 2014

Murphy Brothers Contracting built this 4,100-ft2 custom home in Old Greenwich, Connecticut, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2014

Case study about a DOE 2014 Housing Innovation Award winner.

Author(s): Gilbride
Organization(s): PNNL
Publication Date: December, 2016

BrightLeaf Homes built this 4,608-ft2 custom home in LaGrange, Illinois, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: December, 2016

Charis Homes built this 5,505-ft2 custom home in Richfield, Ohio, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: December, 2016

Garbett Homes built this 5,226-ft2 custom home in Sandy, Utah, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: December, 2016

High Performance Homes built this 5,140-ft2 custom home in Gettysburg, Pennsylvania, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride, KA Cort
Organization(s): PNNL
Publication Date: December, 2016

Kalamazoo Valley Habitat for Humanity built this 1,120-ft2 affordable home in Kalamazoo, Michigan, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: December, 2016

Knaggs Construction built this 4,566-ft2 custom home in Kearney, Nebraska, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

Author(s): Gilbride
Organization(s): PNNL
Publication Date: December, 2016

Mantell-Hecathorn Builders built this 1,559-ft2 custom home in Cortez, Colorado, to the high-performance requirements of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) Program. 

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